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  <xs:element id="land_WaterAssetsCostToExerciseContract" abstract="false" name="WaterAssetsCostToExerciseContract" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_WaterAssetsPurchasedCarryingValue" abstract="false" name="WaterAssetsPurchasedCarryingValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_VariablerateLineofCreditMember" abstract="true" name="VariablerateLineofCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_LongTermMortgageNotesAndBondsPayableMember" abstract="true" name="LongTermMortgageNotesAndBondsPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_FixedrateMortgageNotesPayableMember" abstract="true" name="FixedrateMortgageNotesPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_FixedRateBondsPayableMember" abstract="true" name="FixedRateBondsPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_NotesandBondsBorrowingsMember" abstract="true" name="NotesandBondsBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_FarmCreditNotesPayableMember" abstract="true" name="FarmCreditNotesPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_MetlifeFacilityMember" abstract="true" name="MetlifeFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_MetLifeTermLoan2020Member" abstract="true" name="MetLifeTermLoan2020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_MetLifeTermLoan2022Member" abstract="true" name="MetLifeTermLoan2022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_FarmerMacBondsPayableMember" abstract="true" name="FarmerMacBondsPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_VariableRateLineOfCreditMember" abstract="true" name="VariableRateLineOfCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_DebtInstrumentWeightedAverageInterestRate" abstract="false" name="DebtInstrumentWeightedAverageInterestRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="land_DebtInstrumentBasisSpreadOnVariableRateIncreaseDecrease" abstract="false" name="DebtInstrumentBasisSpreadOnVariableRateIncreaseDecrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="land_DebtInstrumentPrincipalAmountEligibleForInterestPatronage" abstract="false" name="DebtInstrumentPrincipalAmountEligibleForInterestPatronage" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_MetLifeMember" abstract="true" name="MetLifeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_LongTermDebtAdditionalAvailableAmount" abstract="false" name="LongTermDebtAdditionalAvailableAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_DebtInstrumentMinimumAnnualizedRate" abstract="false" name="DebtInstrumentMinimumAnnualizedRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="land_InterestPatronage" abstract="false" name="InterestPatronage" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_LongTermDebtMaturityAfterYearFour" abstract="false" name="LongTermDebtMaturityAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_NumberOfDerivativeInstruments" abstract="false" name="NumberOfDerivativeInstruments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="land_AdvisoryAgreementBaseRateAnnualizedRateMember" abstract="true" name="AdvisoryAgreementBaseRateAnnualizedRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementBaseRateQuarterlyRateMember" abstract="true" name="AdvisoryAgreementBaseRateQuarterlyRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementIncentiveRateQuarterlyHurdleRateMember" abstract="true" name="AdvisoryAgreementIncentiveRateQuarterlyHurdleRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementIncentiveRateAnnualizedHurdleRateMember" abstract="true" name="AdvisoryAgreementIncentiveRateAnnualizedHurdleRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeBelowCatchUpThresholdMember" abstract="true" name="AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeBelowCatchUpThresholdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementIncentiveRateQuarterlyCatchUpThresholdMember" abstract="true" name="AdvisoryAgreementIncentiveRateQuarterlyCatchUpThresholdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementIncentiveRateAnnualizedCatchUpThresholdMember" abstract="true" name="AdvisoryAgreementIncentiveRateAnnualizedCatchUpThresholdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeExceedsCatchUpThresholdMember" abstract="true" name="AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeExceedsCatchUpThresholdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdvisoryAgreementIncentiveRateRealizedCapitalGainsMember" abstract="true" name="AdvisoryAgreementIncentiveRateRealizedCapitalGainsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_FinancingArrangementAgreementFinancingFeesMember" abstract="true" name="FinancingArrangementAgreementFinancingFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_FinancingArrangementAgreementPercentageOfFinancingObtainedMember" abstract="true" name="FinancingArrangementAgreementPercentageOfFinancingObtainedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_FinancingArrangementAgreementPercentageOfFinancingFeesPaidMember" abstract="true" name="FinancingArrangementAgreementPercentageOfFinancingFeesPaidMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_DealerManagerAgreementsMember" abstract="true" name="DealerManagerAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_DealerManagerAgreementsSellingCommissionsOfGrossProceedsFromSalesMember" abstract="true" name="DealerManagerAgreementsSellingCommissionsOfGrossProceedsFromSalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_DealerManagerAgreementsDealerManagerFeeOfGrossProceedsFromSalesMember" abstract="true" name="DealerManagerAgreementsDealerManagerFeeOfGrossProceedsFromSalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_SellingCommissionsAndDealerManagementFeesMember" abstract="true" name="SellingCommissionsAndDealerManagementFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_GladstoneSecuritiesMember" abstract="true" name="GladstoneSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_NoticePeriodForTerminationOfAgreementWithoutCause" abstract="false" name="NoticePeriodForTerminationOfAgreementWithoutCause" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="land_TerminationAgreementPercentageOfIndependentDirectors" abstract="false" name="TerminationAgreementPercentageOfIndependentDirectors" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="land_TerminationAgreementMultiplierForAverageAnnualBaseManagementFee" abstract="false" name="TerminationAgreementMultiplierForAverageAnnualBaseManagementFee" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="land_TerminationAgreementPeriodPriorToTermination" abstract="false" name="TerminationAgreementPeriodPriorToTermination" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="land_BaseManagementFeeMember" abstract="true" name="BaseManagementFeeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_CapitalGainsFeeMember" abstract="true" name="CapitalGainsFeeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdministrationFeeMember" abstract="true" name="AdministrationFeeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdviserMember" abstract="true" name="AdviserMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_MiscellaneousGeneralAndAdministrativeExpensesMember" abstract="true" name="MiscellaneousGeneralAndAdministrativeExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_CumulativeAccruedButUnpaidPortionOfPriorAdministrativeFeesMember" abstract="true" name="CumulativeAccruedButUnpaidPortionOfPriorAdministrativeFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AdministratorMember" abstract="true" name="AdministratorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_A2023UniversalRegistrationStatementMember" abstract="true" name="A2023UniversalRegistrationStatementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_AtTheMarketProgramMember" abstract="true" name="AtTheMarketProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_OPUnitHolderMember" abstract="true" name="OPUnitHolderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_ValueOfSecuritiesAllowedForIssuance" abstract="false" name="ValueOfSecuritiesAllowedForIssuance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_MaximumNumberOfSecuritiesCanBeSoldUnderShelfRegistrationStatement" abstract="false" name="MaximumNumberOfSecuritiesCanBeSoldUnderShelfRegistrationStatement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="land_MaximumAmountOfSecuritiesCanBeSoldUnderShelfRegistrationStatement" abstract="false" name="MaximumAmountOfSecuritiesCanBeSoldUnderShelfRegistrationStatement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="land_DeferringOfferingCostsExpensed" abstract="false" name="DeferringOfferingCostsExpensed" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_CommonStockValueAuthorizedUnderEquityOfferingProgram" abstract="false" name="CommonStockValueAuthorizedUnderEquityOfferingProgram" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_SaleOfStockWeightedAveragePricePerShare" abstract="false" name="SaleOfStockWeightedAveragePricePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="land_OperatingLeaseLeaseReimbursements" abstract="false" name="OperatingLeaseLeaseReimbursements" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_LateFeeExpensesForRent" abstract="false" name="LateFeeExpensesForRent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_LesseeOperatingLeaseTerminationFee" abstract="false" name="LesseeOperatingLeaseTerminationFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="land_FarmCreditFacilityMember" abstract="true" name="FarmCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_A2026UniversalRegistrationStatementMember" abstract="true" name="A2026UniversalRegistrationStatementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_DebtInstrumentLoanToValueRatio" abstract="false" name="DebtInstrumentLoanToValueRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="land_O2026M4DividendsMember" abstract="true" name="O2026M4DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_O2026M5DividendsMember" abstract="true" name="O2026M5DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="land_O2026M6DividendsMember" abstract="true" name="O2026M6DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
